Practice

for i = 1,table.maxn(beings) do
	if beings[i] then
		create_seq_function(being_prototype.OnCreate, function(self)
                	self:add_property("sanity", true)
		)
		create_seq_function(being_prototype.OnAction, function(self)
                	if self:is_visible()
				then player.sanity= player.sanity - 5, self.sanity=false
			end
		)

	end
end